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Finding the Fourth Proportional to 321,249.96, 481,898.61 and 84,591

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Solution

The fourth proportional to 321,249.96, 481,898.61 and 84,591 is: 126,892.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,249.96 : 481,898.61 = 84,591 : x
  2. Step 2: Convert to fraction form
    321,249.96/481,898.61 = 84,591/x
  3. Step 3: Cross multiply
    321,249.96x = 481,898.61 × 84,591
  4. Step 4: Simplify right side
    321,249.96x = 40,764,285,318.51
  5. Step 5: Solve for x
    x = 40,764,285,318.51/321,249.96
  6. Step 6: Final answer
    x = 126,892.73

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.